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DESCRIPTION
Seattle Public Utilities 2015 study maps of region affected by sea level rise.
Citation preview
August 24, 2015
Climate Preparednessa mapping inventory of changing coastal flood risk
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Prepared for Seattle Oce of Sustainability & Environment by:
DESIGN
Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
David Cutler AIA, Principal
Alicia Daniels Uhlig NCARB, Director of Sustainability, Principal
Amanda Reed, Leslie Batten ASLA
Prepared for Seattle Oce of Sustainability & Environment by:
Jessica Finn Coven, Director
Tracy Morgenstern, Climate Protection Program Manager
Valerie Pacino, Climate Protection Planning Specialist
Contributions provided by:
Chad Lynch, Seattle Department of Transportation
Christine Alar, Seattle Department of Transportation
Dave Jacobs, Seattle Public Utilities
Jennifer Pettyjohn, Planning & Development
Kenneth Mar, Planning and Development
Lara Whitely Binder, Climate Impacts Group, University of Washington
Margaret Glowacki, Planning and Development
Paul Fleming, Seattle Public Utilities
ACKNOWLEDGMENTS
Scientific Data & Methodological Guidance provided by:
James Rufo Hill, Seattle Public Utilities
Sea-Level Rise ("SLR") information is prepared for use by The City of Seattle for its internal purposes only, and is not designed or intended for use by members of the public. All such SLR information and content is provided on an as is, as available basis without warranties of any kind either express or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement.
The City of Seattle and its consultants make no representations or warranty as to its accuracy, and in particular, its accuracy as to labeling, completeness, reliability, currency, dimensions, contours, property boundaries or placement of location of any map feature thereon. In no event will the City of Seattle and its consultants be liable for any loss or damage including without limitation, indirect, or consequential loss or damage, or any loss or damage whatsoever arising from loss of data or profits arising out of, or in connection with, the use of any SLR information.
DESIGN
Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
TABLE OF CONTENTS01 INTRODUCTION
Purpose
Approach
Area Impacted
Report Key
09 CITYWIDE IMPACTSSEATTLE LAND AREA (2FT, 3FT, 4FT and 5 FT above MHHW)
14 CRITICAL AREAS (2FT, 3FT, 4FT, and 5FT above MHHW)
Aquatic Areas Includes: Riparian Corridors, Wetlands, Shoreline Buers, Stream Length
Habitat & Parks Includes: Priority Habitat & Species Areas, Parks
Soils Includes: Peat Settlement Areas, Liquefaction Prone Areas, Geologic Hazard Areas
27 LAND USE (2FT, 3FT, 4FT, and 5FT above MHHW)
Zoned Use Includes: SF, MF, C/M, D, I, MPC, MI
Planning Areas Includes urban centers, villages, manufacturing and industrial centers
Existing Land Use Includes SF, MR, LR NC, C, C, I, MPC
40 TRANSPORTATION (2FT, 3FT, 4FT, and 5FT above MHHW)
Transit Includes: Bus stops, bus routes, Transit Master Plan Priority Corridors, Frequent Transit Corridors, Rail (light/street car/monorail/Sounder Train)
CIP & Streets Includes: Capital Improvement Projects (CIP) Proposed Projects and Arterials
49 FREIGHT (2FT, 3FT, 4FT, and 5FT above MHHW)
Trucks & Rail Includes: Major Truck Routes, Freight Rail
53 IMPACTS TO FRONTLINE COMMUNITIESBACKGROUND
FRONTLINE COMMUNITIES: CITYWIDE (2FT5FT above MHHW)Total Impacts Summary
Socioeconomic Status
Households/Disability
Minority Status & Language
Housing & Transportation
Overall Ranking
62 FRONTLINE COMMUNITIES: DUWAMISH (2FT5FT above MHHW)(Enlarged Maps only)
Socioeconomic Status: Duwamish
Households/Disability: Duwamish
Minority Status & Language: Duwamish
Housing & Transportation: Duwamish
Overall Ranking: Duwamish
68 FOCUS AREA IMPACTSALKI (2FT5FT above MHHW)
INTERBAY (2FT5FT above MHHW)
DUWAMISH (2FT5FT above MHHW)
72 APPENDIXIMPACTS TO DUWAMISH STUDY AREA (2FT above MHHW)
(Enlarged Maps only) Includes Critical Areas: Aquatic, Habitat & Parks, Soils; Planning: Zoned Use, Urban Villages; Transportation: Transit)
PORT OF SEATTLE TERMINAL - 18: ADJUSTED INUNDATION AREAS
Includes Potential Inundation Areas map pre and post grading changes
METHODOLOGY
See GIS Files & Data (Maps may be enlarged by accessing the GIS data)
1MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
INTRODUCTION: PurposePURPOSE
This study, including the associated GIS layers, provides a screening tool for broadly assessing the impacts of sea level rise on Seattle. The report provides an inventory of specific critical areas, land uses, select transit infrastructure and planned investments, and communities at risk of flooding under future climate conditions. The GIS layers can be used to evaluate additional categories of infrastructure, specific assets, or project sites.
Uncertainties inherent in climate projections, the limits of LiDAR imagery in accurately capturing the elevation of an individual site, a range of plus/minus 7 years in the timing of impacts presented herein, and grade changes that have occurred since the LiDAR data was collected in 2000/2001 mean the report and GIS layers should be used for screening purposes only. The study is intended to be used as a guide to better understand the increasing risk of coastal flooding across the city and in general geographic areas. To understand the risk at a specific location, a more detailed evaluation of site-specific elevations would be needed. The City and its partners assume no liability in the use of this information. Please see box (left) for an example illustrating the screening nature of this assessment.
Assessment as Screening Tool
Case Study: Port of Seattle
Recent work by the Port of Seattle highlights the screening nature of this study. Since the LiDAR data were collected in 2000/2001, the Port of Seattle completed work that changed land elevations at six sites reducing the areas at risk of flooding from sea level rise. The Port property with the most extensive changes is Terminal-18 (T-18) where regrading reduces the at-risk area by 5%. Please see the appendix for maps that illustrate the changes at T-18.
2MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
INTRODUCTION: ApproachAPPROACH
The approach used in this study is a departure from those more commonly used. This study focuses on changes in the frequency and water levels associated with high tides and extreme storm events, rather than emphasizing change in base sea level. The study incorporates the latest sea level rise projections for Seattle using projections at the higher end of the range identified by the National Research Council (NRC) 20121, but modifies how that information is presented to facilitate wider understanding of impacts and adaptation planning.
The projections and scenarios are based on a 2012 National Research Council report (Sea-Level rise for the Coasts of California, Oregon, and Washington: Past Present and Future). Water levels account for the National Tidal Datum Epoch 1983-2001 (NTDE 83-01). The base digital elevation model (DEM) used in the analysis was produced using a 2001 Puget Sound LiDAR Consortium study, which notes a vertical accuracy, or margin of error, of 1 foot (NAVD88). Breaklines were not applied, therefore some objects such as piers may not be accurately depicted.
In our approach, data were interpolated from the NRC study to 2035 and 2060 to better align with City planning processes and rounded for clarity within a range consistent with the inherent uncertainties described and appropriate for a screening tool. These values were then added to the highest water level observed in Seattle over the last century (for 100-year, annual, and monthly events) to produce projected water levels associated with dierent flood intervals. For example, the maps reflecting flooding at 5 feet above the current average daily high tide (MHHW) do not reflect 5 feet of base sea level rise but a combination of:
1. The historical 100-year event storm surge, which is about 3 feet above the average daily high tide), and
2. A 2 feet rise in sea level in 2060 (the high end of the mid-century range in the NRC study extrapolated to 2060).
Other maps illustrating other water levels reflect flooding during high tides based on the high end of the range of projected sea level rise for the specified years.
1 National Research Council. 2012. Sea-Level Rise for the Coasts of California, Oregon, and Washington: Past, Present, and Future.
Traditional sea-level rise assessments provide specific height projections for specific periods (for example, four feet of sea-level rise by the year 2100). While information on the timing of specific projections is useful, the traditional approach can lead to vulnerability assessments that are too anchored on a defined amount and time frame for sea level rise, which may change as our scientific understanding of sea level rise evolves. Further, assessments that model a change in base sea level also fail to capture how sea level rise alters the frequency of episodic flood events that drive coastal land use and infrastructure planning.
3MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
INTRODUCTION: Approach
The chart below details this approach. Please note the data are rounded for ease of use.
Basing the analysis on changes in daily, monthly, annual, and 100-year water levels better captures how we will experience the leading edge of future sea level conditions. The approach also allows users to better evaluate impacts on land use and infrastructure by supporting a more refined consideration of sensitivity to flooding.
The amount and extent of coastal flooding experienced by a community will depend on a variety of factors. The values presented in this analysis combine Seattles highest observed water levels for storm surge and high tides with projected changes in relative sea level for Seattle as described by NRC 2012. Other factors influencing coastal flood levels, such as erosion or long-term changes in land elevation due to soil compaction, are not included in this study. Natural variability will also aect when we exceed specific sea level rise thresholds due to human-caused climate change,
While this study illustrates projections for 2035 and 2060 it is important to remember that by 2100 under current projections another 2 feet of sea level rise is expected, further increasing the areas at risk of flooding due to sea level rise
NOW 2035 2060A B C = A + B D E = A+D
Water Level* Projected Sea Level Rise
Water Level
Projected Sea Level Rise
Water Level
100 Yr Storm (Surge) 3' 1' 4' 2' 5'
Annually 2' 1' 3' 2' 4'
Monthly 1' 1' 2' 2' 3'
Daily 0 1' 1' 2' 2'
* Above average daily high tide (MHHW) Current projections do not show a change in storm surge as a result of sea level rise.
Projected water levels associated with dierent flood intervals based on National Research Council 2012 data and observed water levels over the last century in Seattle. Data are rounded for ease of use.
FREQ
UEN
CY
4MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
INTRODUCTION: Approach
This diagram illustrates the relationship between the 2FT-5FT water levels, the City's Ocial Vertical Datum (NAVD88), and the city's current Average Daily High Tide (MHHW) level, which is 9.01 feet above NAVD88.
VERTICAL DATUM: ELEVATIONS & DATA
North American Vertical Datum of 1988 (NAVD88) is the official City of Seattle Vertical Datum; all water levels are measured from this zero point.
+3FT+4FT
+5FT
NAVD88
1011
1213
14
11NAVD88
12NAVD88
13NAVD88
14NAVD88
@0.00
9
8
7
6
5
4
3
2
1
MHHW@9.01
0
FEET ABOVE MHHW
FEET ABOVE MHHW
AVERAGE DAILY HIGH TIDE OR MEAN HIGHER HIGH WATER (MHHW )
+2FT
Highest Observed Water Level
SLR 11 /
SLR 12 /
SLR 13 /
SLR 14 /
potentially causing these thresholds to be crossed sooner or later than would be expected on the basis of climate change alone.
SEA LEVEL RISE: VERTICAL DATUM & FEET OF RISE
Four water level projections were provided by Seattle Public Utilities. This diagram shows what level of water each of these data correspond to in relation to North American Vertical Datum of 1988 (NAVD88) (the City's ocial vertical datum), and Average Daily High Tide or mean higher high water (MHHW).
Establishing and clarifying the starting vertical datum is critical to understanding water levels. Many dierent climate change studies use dierent vertical datums, as well as dierent units (inches versus feet, for example) to talk about sea level rise. This study uses NAVD88 as the base vertical datum for the data, and looks at water levels 1114 feet above this zero point. In order to understand what that means in relation to the water levels we actually see and experience these water levels are further explained in relation to today's Average Daily High Tide (MHHW) levels, which is 9.01 feet above NAVD88. The number of feet above the MHHW level is used to indicate water levels throughout this study (25 feet). Additionally, these vertical datum are highlighted in the matrix on the following page.
5MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
NOW 2035 2060WATER LEVEL
(DISTANCE ABOVE)WATER LEVEL
(DISTANCE ABOVE)WATER LEVEL
(DISTANCE ABOVE)
PROJECTIONSNAVD88
(0.00')Avg Daily High Tide (MHHW)
NAVD88 (0.00')
Avg Daily High Tide (MHHW)
NAVD88 (0.00')
Avg Daily High Tide (MHHW)
FREQ
UEN
CY
(Dai
ly/m
onth
ly/a
nnua
lly/1
00yr
)
100 Year1" Surge"
High12 feet 3 feet
13 feet 4 feet 14 feet 5 feet
Mid n/a n/a 13 feet 4 feet
AnnuallyHigh
11 feet 2 feet12 feet 3 feet 13 feet 4 feet
Mid n/a n/a 12 feet 3 feet
MonthlyHigh n/a n/a 11 feet 2 feet 12 feet 3 feet
Mid n/a n/a n/a n/a 11 feet 2 feet
DailyHigh n/a n/a n/a n/a 11 feet 2 feet
Mid n/a n/a n/a n/a n/a n/a
PROJECTED WATER LEVELS: WHEN & IMPACT ON FLOODING
The frequency and magnitude of flooding will increase due to sea level rise, with existing annual events projected to become monthly events by around 2035 and daily events by about 2060. The matrix below details the projected frequency and magnitude of flooding over time. Both mid and high climate projections are presented. The map pages which follow are organized by water level and are based on only the high climate projections due to clarity and space considerations.
INTRODUCTION: Approach
1. A "100 Year" frequency corresponds to the highest water level (or extreme high tide) achieved through a combination of the inverted barometer eect (low atmospheric pressure) and/or wind and wave action, that is, a "storm surge." It is not possible to estimate how many times per year this level will occur, but a 100 Year frequency has a 1% probability of occurring in any given year. Seattle's highest tide ever observed was 12.14 FT above NAVD88 (NOAA, January 27, 1983), and its most recent extreme high tide, which matched the highest observed tide, was in December 2012. With sea level rise, the 100 Year surge level is projected to increase to 13 feet and 14 feet NAVD88.
6MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
INTRODUCTION: ApproachHOW TO USE THIS STUDY
This study can be used in two main ways. First, a planner can evaluate additional GIS layers of infrastructure assets or community attributes to better understand the scope and scale of impacts at a broad level. Second, specific sites or assets can be evaluated to determine their vulnerability to future sea level conditions. In this case, the user would identify the known base elevation for the site or elevation of concern for a particular asset, cross-reference the specific elevation with mapped water levels, and then determine sensitivity to inundation of the site or asset considering the projected daily, monthly, annual, and 100-year frequencies provided.
7MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: ANNUALLY2035: MONTHLY2060: DAILY
Total Area (acres)
% of Total Seattle Land Area
Total Area Impacted
% of Total Baseline Seattle Land Area
SEATTLE LAND AREA 53,238 100%
2FT ABOVE MHHW (11' NAVD88) 120 acres 0.2%
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: 100 YEAR 2035: ANNUALLY2060: MONTHLY
Total Area (acres)
% of Total Seattle Land Area
Total Area Impacted
% of Total Baseline Seattle Land Area
SEATTLE LAND AREA 53,238 100%
3FT ABOVE MHHW (12' NAVD88) 259 acres 0.5%
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: 100 YEAR 2060: ANNUALLY
Total Area (acres)
% of Total Seattle Land Area
Total Area Impacted
% of Total Baseline Seattle Land Area
SEATTLE LAND AREA 53,238 100%
4FT ABOVE MHHW (13' NAVD88) 478 acres 1.0%
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: N/A2060: 100 YEAR
Total Area (acres)
% of Total Seattle Land Area
Total Area Impacted
% of Total Baseline Seattle Land Area
SEATTLE LAND AREA 53,238 100%
5FT ABOVE MHHW (14' NAVD88) 771 acres 1.5%
The projected impact frequencies shown are based on the highest sea level rise projections for the year; see explanation on previous pages.
INTRODUCTION: Area Impacted
8MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: ANNUALLY2035: MONTHLY2060: DAILY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
2ft ABOVE MHHW (11' NAVD88) 120 acres 0.2%
C D D/C =% of Total PA Area
TOTAL - LAND USE: PLANNING AREAS 15,307 77 acres 0.5%
SPECIFIC PLANNING AREA (PA)ESpecific Planning Area
FSpecific PA Area Impacted
F/E =% of SpecificPA Area
Ballard-Interbay-Northend 934 acres 5 acres 0.5%
Belltown 220 acres 2 acres 0.9%
Commercial Core 277 acres 1 acres 0.4%
Greater Duwamish 4,953 acres 69 acres 1.4%
Pioneer Square 141 acres no impact n/a
South Park 263 acres no impact n/a
Other Urban Villages 8,519 acres no impact n/a
PLANNING IMPACTS: Urban Villages
HOW TO READ THIS REPORT: QUANTIFYING IMPACT BY AREA, LENGTH, AND NUMBER
Where the area subject to increased flooding and a study category1 area overlap a measurement is taken in plan, and a percent of area impact is calculated based on the city's total land area, as well as the total city-wide area of the specific study category area. For example:
At a water level 2 feet above MHHW,
120 acres within the city are impacted
which represents 0.2% of the total baseline Seattle land area.
This impact aects 0.5% of Seattle's total Planning Areas areas
(or 77 acres of Planning Areas are impacted compared to the total 120 acres of land impacted city-wide).
For Baseline comparison see chart at the beginning of each study category
Where area is not an appropriate unit of measurement, such as for analyzing impacts to the length (linear feet) of streams, alternate units are used, but the same impact overlay and calculation method applies.
1 See study area categories on page 13.
INTRODUCTION: Report Key
2FTABOVE MHHW
9MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
2FTSEATTLE LAND AREA IMPACTS
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: ANNUALLY2035: MONTHLY2060: DAILY
Total Area (acres)
% of Total Seattle Land Area
Total Area Impacted
% of Total Baseline Seattle Land Area*
SEATTLE LAND AREA 53,238 100%
2FT ABOVE MHHW (11' NAVD88) 120 acres 0.2%
At 2 feet above MHHW, 120 acres - representing 0.2% of Seattle's total land area - will be impacted. The frequency of this flooding occurs annually now, and is projected to increase to monthly by 2035, and daily by 2060.
*The Baseline Area for inundation is the total Seattle Land Area
99.7%UNAFFECTED
0.2% IMPACTED
2FT IMPACTS TO LAND AREAThe pie chart shows the percentage of total Seattle Land Area (53,238 acres) impacted by water levels 2FT above MHHW (Total Area Impacted 120 acres).
2FTABOVE MHHW
10MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
3FTYear of Occurrence: FREQUENCY BASELINE IMPACTEDNow: 100 YEAR 2035: ANNUALLY2060: MONTHLY
Total Area (acres)
% of Total Seattle Land Area
Total Area Impacted
% of Total Baseline Seattle Land Area*
SEATTLE LAND AREA 53,238 100%
3FT ABOVE MHHW (12' NAVD88) 259 acres 0.5%
At 3 feet above MHHW, 259 acres - representing 0.5% of Seattle's total land area - will be impacted. The frequency of this flooding occurs as a 100-year event now, and is projected to increase to annually by 2035, and monthly by 2060.
*The Baseline Area for inundation is the total Seattle Land Area
SEATTLE LAND AREA IMPACTS
99.5%UNAFFECTED
0.5% IMPACTED
3FT IMPACTS TO LAND AREAThe pie chart shows the percentage of total Seattle Land Area (53,238 acres) impacted by water levels 3FT above MHHW (Total Area Impacted 259 acres).
3FTABOVE MHHW
11MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
4FTYear of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: 100 YEAR 2060: ANNUALLY
Total Area (acres)
% of Total Seattle Land Area
Total Area Impacted
% of Total Baseline Seattle Land Area*
SEATTLE LAND AREA 53,238 100%
4FT ABOVE MHHW (13' NAVD88) 478 acres 1.0%
At 4 feet above MHHW, 478 acres - representing 1% of Seattle's total land area - will be impacted. The frequency of this flooding is projected to occur as a 100-year event by 2035, and increase to an annual event by 2060.
*The Baseline Area for inundation is the total Seattle Land Area
SEATTLE LAND AREA IMPACTS
99%UNAFFECTED
1% IMPACTED
4FT IMPACTS TO LAND AREAThe pie chart shows the percentage of total Seattle Land Area (53,238 acres) impacted by water levels 4FT above MHHW (Total Area Impacted 478 acres).
4FTABOVE MHHW
12MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
98.5%UNAFFECTED
1.5% IMPACTED
5FTYear of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: N/A2060: 100 YEAR
Total Area (acres)
% of Total Seattle Land Area
Total Area Impacted
% of Total Baseline Seattle Land Area*
SEATTLE LAND AREA 53,238 100%
5FT ABOVE MHHW (14' NAVD88) 771 acres 1.5%
At 5 feet above MHHW, 771 acres - representing 1.5% of Seattle's total land area - will be impacted. The frequency of this flooding is projected to occur as a 100-year event by 2060.
*The Baseline Area for inundation is the total Seattle Land Area
SEATTLE LAND AREA IMPACTS
5FT IMPACTS TO LAND AREAThe pie chart shows the percentage of total Seattle Land Area (53,238 acres) impacted by water levels 5FT above MHHW (Total Area Impacted 771 acres).
5FTABOVE MHHW
13MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
IMPACTS TO STUDY AREAS The following pages summarize city wide impacts for water levels 2 - 5 feet above MHHW by study area. These land use study areas include:
CRITICAL AREAS
Aquatic Areas Includes: Riparian Corridors, Wetlands, Shoreline Buers, Stream Length
Habitat & Parks Includes: Priority Habitat & Species Areas, Parks
Soils Includes: Peat Settlement Areas, Liquefaction Prone Areas, Geologic Hazard Areas
PLANNING
Zoned Use 5 of 7 zone classes impacted
Urban Villages 6 of 42 Urban Villages impacted
Existing Land Use 6 of 9 zone classes impacted
Jobs & Housing Includes Jobs, & SF & MF Housing Units
TRANSPORTATION
Transit Includes: Bus stops, bus routes, Transit Master Plan Priority Corridors, Frequent Transit Corridors, Rail (light/street car/monorail/Sounder Train)
CIP & Streets Includes: Capital Improvement Projects (CIP) Proposed Projects and Arterials
FREIGHT
Trucks & Rail Includes: Major Truck Routes, Freight Rail
14MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
CRITICAL AREAS: Baseline
CRITICAL AREAS BASELINEAquatic Areas, Habitat & Parks A
Total Area (acres)
SEATTLE LAND AREA 53,238
TOTAL-CRITICAL AREAS: AQUATIC AREAS n/a*
SPECIFIC AQUATIC CRITICAL AREASESpecific Aquatic Area
E/A =% of Total Seattle Land Area
Riparian Corridors 1,326 2.5%
Wetlands 502 0.9%
Shoreline Buer 1,115 2.1%
Stream Length (linear feet) 284,787 LF n/a
TOTAL - CRITICAL AREAS: HABITAT & PARKS n/a*
SPECIFIC HABITAT & PARKS CRITICAL AREAS
ESpecific Habitat & Parks Area
E/A =% of Total Seattle Land Area
PHS-Biodiversity Area/Corr, Eagle 605 1.1%
Eagle Mngmt Area 1,139 2.1%
PHS-Biodiversity Area/Corr 3,572 6.7%
PHS-Biodiversity Area/Corr, Heron 49 0.1%
Heron Habitat Area 372 0.7%
PHS-Biodiversity Area/Corr, Eagle & Heron 2.5 0.01%
Parks 5,304 10%
*areas cannot be totaled due to overlapping areas
CRITICAL AREAS BASELINESoils
ATotal Area (acres)
SEATTLE LAND AREA 53,238
TOTAL-CRITICAL AREAS: SOILS n/a*
SPECIFIC SOILS CRITICAL AREASESpecific Soils Area
E/A =% of Total Seattle Land Area
Peat Settlement Prone Areas 1,928 3.6%
Liquefaction Prone Areas 8,029 15%
Geologic Hazard Areas1 6,888 13%
*areas cannot be totaled due to overlapping areas1. Geologic Hazard Areas include known slide areas, potential slide areas, and steep slope erosion areas
15MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
CRITICAL AREAS IMPACTS: Aquatic AreasGIS data: Streams_LandOnly; Riparian_SeattleLimits; Wetlands_SeattleLimits; ShorelineHabitat_SeattleLimits
*Areas cannot be totaled due to overlapping areas. For example, a wetland may overlap a shoreline buer, or a priority habitat area may exist within a park; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: ANNUALLY2035: MONTHLY2060: DAILY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
2FT ABOVE MHHW (11' NAVD88) 120 acres 0.2%
TOTAL - CRITICAL AREAS: AQUATIC AREAS n/a*
SPECIFIC AQUATIC CRITICAL AREASESpecific Aquatic Area
FSpecific Aquatic Area Impacted
F/E =% of SpecificAquatic Area
Riparian Corridors 1,326 2 acres 0.2%
Wetlands 502 11 acres 2.2%
Shoreline Buer 1,115 66 acres 6.0%
Stream Length (linear feet) 284,787 LF 534 LF 0.2%
Streams Impacted: Broadview, Fairmont, Golden Gardens, Longfellow, Pelly, Pipers, Schmitz, Seola Beach. See GIS for specific locations.
2FTABOVE MHHW
16MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
3FTCRITICAL AREAS IMPACTS: Aquatic AreasGIS data: Streams_LandOnly; Riparian_SeattleLimits; Wetlands_SeattleLimits; ShorelineHabitat_SeattleLimits
*Areas cannot be totaled due to overlapping areas. For example, a wetland may overlap a shoreline buer, or a priority habitat area may exist within a park; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: 100 YEAR 2035: ANNUALLY2060: MONTHLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
3FT ABOVE MHHW (12' NAVD88) 259 acres 0.5%
TOTAL - CRITICAL AREAS: AQUATIC AREAS n/a*
SPECIFIC AQUATIC CRITICAL AREASESpecific Aquatic Area
FSpecific Aquatic Area Impacted
F/E =% of SpecificAquatic Area
Riparian Corridors 1,326 3 acres 0.2%
Wetlands 502 14 acres 2.8%
Shoreline Buer 1,115 94 acres 8.4%
Stream Length (linear feet) 284,787 LF 911 LF 0.3%
Streams Impacted: Broadview, Fairmont, Fauntleroy, Golden Gardens, Longfellow, Pelly, Pipers, Puget Ridge, Schmitz, Seola Beach. See GIS for specific locations.
3FTABOVE MHHW
17MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
CRITICAL AREAS IMPACTS: Aquatic AreasGIS data: Streams_LandOnly; Riparian_SeattleLimits; Wetlands_SeattleLimits; ShorelineHabitat_SeattleLimits
*Areas cannot be totaled due to overlapping areas. For example, a wetland may overlap a shoreline buer, or a priority habitat area may exist within a park; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: 100 YEAR 2060: ANNUALLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
4FT ABOVE MHHW (13' NAVD88) 478 acres 1.0%
TOTAL - CRITICAL AREAS: AQUATIC AREAS n/a*
SPECIFIC AQUATIC CRITICAL AREASESpecific Aquatic Area
FSpecific Aquatic Area Impacted
F/E =% of SpecificAquatic Area
Riparian Corridors 1,326 5 acres 0.4%
Wetlands 502 17 acres 3.4%
Shoreline Buer 1,115 135 acres 12%
Stream Length (linear feet) 284,787 LF 1,634 LF 0.6%
Streams Impacted: Broadview, Fairmont, Fauntleroy, Golden Gardens, Longfellow, Pelly, Pipers, Puget Ridge, Schmitz, Seola Beach. See GIS for specific locations.
4FTABOVE MHHW
18MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
5FTCRITICAL AREAS IMPACTS: Aquatic AreasGIS data: Streams_LandOnly; Riparian_SeattleLimits; Wetlands_SeattleLimits; ShorelineHabitat_SeattleLimits
*Areas cannot be totaled due to overlapping areas. For example, a wetland may overlap a shoreline buer, or a priority habitat area may exist within a park; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: N/A2060: 100 YEAR
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
5FT ABOVE MHHW (14' NAVD88) 771 acres 1.5%
TOTAL - CRITICAL AREAS: AQUATIC AREAS n/a*
SPECIFIC AQUATIC CRITICAL AREASESpecific Aquatic Area
FSpecific Aquatic Area Impacted
F/E =% of SpecificAquatic Area
Riparian Corridors 1,326 10 acres 0.8%
Wetlands 502 20 acres 4%
Shoreline Buer 1,115 182 acres 16%
Stream Length (linear feet) 284,787 LF 2,740 LF 1%
Streams Impacted: Broadview, Fairmont, Fauntleroy, Golden Gardens, Longfellow, Pelly, Pipers, Puget Ridge, Schmitz, Seola Beach. See GIS for specific locations.
5FTABOVE MHHW
19MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
2FTCRITICAL AREAS IMPACTS: Habitat & ParksGIS data: PriorityHabitats_CityLimits.shp, Parks_SeattleLimits.shp
*Habitat Areas and Park Areas cannot be totaled due to overlapping areas. For example, a priority habitat area may exist within a park; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: ANNUALLY2035: MONTHLY2060: DAILY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
2FT ABOVE MHHW (11' NAVD88) 120 acres 0.2%
TOTAL - CRITICAL AREAS: HABITAT & PARKS n/a*
SPECIFIC HABITAT & PARKS CRITICAL AREAS
ESpecific Habitat & Parks Area
FSpecific Habitat & Parks Area Impacted
F/E =% of SpecificHabitat & Parks Area
PHS-Biodiversity Area/Corr, Eagle 605 2 acres 0.3%
Eagle Mngmt Area 1,139 15 acres 1.3%
PHS-Biodiversity Area/Corr 3,572 14 acres 0.4%
PHS-Biodiversity Area/Corr, Heron 49 0.1 acres 0.2%
Heron Habitat Area 372 0.2 acres 0.05%
PHS-Biodiversity Area/Corr, Eagle & Heron 2.5 0.03 acres 1.2%
Parks 5,304 16 acres 0.3%
Habitat areas impacted: Eagle Nest buer, heron habitat buer, saltwater wetland, sea lion habitat, estuarine zone, biodiversity area. Impacted areas are generally located in Discovery Park, Downtown waterfront, and the Duwamish River. See GIS for detailed locations.
Parks w/ largest area impacted: Alki Beach, Herrings House, Lincoln Park, Discovery Park, Golden Gardens
2FTABOVE MHHW
20MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
3FTGIS data: PriorityHabitats_CityLimits.shp, Parks_SeattleLimits.shp
CRITICAL AREAS IMPACTS: Habitat & Parks
*Priority Habitat & Species Areas and Park Areas cannot be totaled due to overlapping areas. For example, a priority habitat area may exist within a park; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: 100 YEAR 2035: ANNUALLY2060: MONTHLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
3FT ABOVE MHHW (12' NAVD88) 259 acres 0.5%
TOTAL - CRITICAL AREAS: HABITAT & PARKS n/a*
SPECIFIC HABITAT & PARKS CRITICAL AREAS
ESpecific Habitat & Parks Area
FSpecific Habitat & Parks Area Impacted
F/E =% of SpecificHabitat & Parks Area
PHS-Biodiversity Area/Corr, Eagle 605 2 acres 0.3%
Eagle Mngmt Area 1,139 23 acres 2%
PHS-Biodiversity Area/Corr 3,572 16 acres 0.5%
PHS-Biodiversity Area/Corr, Heron 49 0.1 acres 0.2%
Heron Habitat Area 372 0.2 acres 0.05%
PHS-Biodiversity Area/Corr, Eagle & Heron 2.5 0.04 acres 1.6%
Parks 5,304 25 acres 0.5%
Habitat areas impacted: Eagle Nest buer, heron habitat buer, saltwater wetland, sea lion habitat, estuarine zone, biodiversity area. Impacted areas are generally located in Discovery Park, Downtown waterfront, and the Duwamish River. See GIS for detailed locations.
Parks w/ largest area impacted: Alki Beach, Herrings House, Lincoln Park, Discovery Park, Golden Gardens
3FTABOVE MHHW
21MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
4FTGIS data: PriorityHabitats_CityLimits.shp, Parks_SeattleLimits.shp
CRITICAL AREAS IMPACTS: Habitat & Parks
*Priority Habitat & Species Areas and Park Areas cannot be totaled due to overlapping areas. For example, a priority habitat area may exist within a park; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: 100 YEAR 2060: ANNUALLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
4FT ABOVE MHHW (13' NAVD88) 478 acres 1.0%
TOTAL - CRITICAL AREAS: HABITAT & PARKS n/a*
SPECIFIC HABITAT & PARKS CRITICAL AREAS
ESpecific Habitat & Parks Area
FSpecific Habitat & Parks Area Impacted
F/E =% of SpecificHabitat & Parks Area
PHS-Biodiversity Area/Corr, Eagle 605 3 acres 0.5%
Eagle Mngmt Area 1,139 40 acres 3.5%
PHS-Biodiversity Area/Corr 3,572 18 acres 0.5%
PHS-Biodiversity Area/Corr, Heron 49 0.1 acres 0.2%
Heron Habitat Area 372 0.3 acres 0.08%
PHS-Biodiversity Area/Corr, Eagle & Heron 2.5 0.05 acres 2%
Parks 5,304 38 acres 0.7%
Habitat areas impacted: Eagle Nest buer, heron habitat buer, saltwater wetland, sea lion habitat, estuarine zone, biodiversity area. Impacted areas are generally located in Discovery Park, Downtown waterfront, and the Duwamish River. See GIS for detailed locations.
Parks w/ largest area impacted: Alki Beach, Herrings House, Lincoln Park, Discovery Park, Golden Gardens
4FTABOVE MHHW
22MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
5FTGIS data: PriorityHabitats_CityLimits.shp, Parks_SeattleLimits.shp
CRITICAL AREAS IMPACTS: Habitat & Parks
*Priority Habitat & Species Areas and Park Areas cannot be totaled due to overlapping areas. For example, a priority habitat area may exist within a park; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: N/A2060: 100 YEAR
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
5FT ABOVE MHHW (14' NAVD88) 771 acres 1.5%
TOTAL - CRITICAL AREAS: HABITAT & PARKS n/a*
SPECIFIC HABITAT & PARKS CRITICAL AREAS
ESpecific Habitat & Parks Area
FSpecific Habitat & Parks Area Impacted
F/E =% of SpecificHabitat & Parks Area
PHS-Biodiversity Area/Corr, Eagle 605 3 acres 0.5%
Eagle Mngmt Area 1,139 53 acres 4.7%
PHS-Biodiversity Area/Corr 3,572 21 acres 0.6%
PHS-Biodiversity Area/Corr, Heron 49 0.1 acres 0.2%
Heron Habitat Area 372 0.3 acres 0.08%
PHS-Biodiversity Area/Corr, Eagle & Heron 2.5 0.06 acres 2.4%
Parks 5,304 50 acres 1.0%
Habitat areas impacted: Eagle Nest buer, heron habitat buer, saltwater wetland, sea lion habitat, estuarine zone, biodiversity area. Impacted areas are generally located in Discovery Park, Downtown waterfront, and the Duwamish River. See GIS for detailed locations.
Parks w/ largest area impacted: Alki Beach, Herrings House, Lincoln Park, Discovery Park, Golden Gardens
5FTABOVE MHHW
23MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
2FTGIS data: PeatSettlementProneAreas_SeattleLimits, Liquefaction Prone Areas.shp, Potential Slide Areas.shp, Steep Slope Erosion Areas_SeattleLimits.ship, KnownSlideAreas_SeattleLimits.shp
CRITICAL AREAS IMPACTS: Soils
*Areas cannot be totaled due to overlapping areas. For example, a steep slope area may overlap a liquefaction prone area; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: ANNUALLY2035: MONTHLY2060: DAILY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
2FT ABOVE MHHW (11' NAVD88) 120 acres 0.2%
TOTAL - CRITICAL AREAS: SOILS n/a*
SPECIFIC SOILS CRITICAL AREASESpecific Soils Area
FSpecific Soils Area Impacted
F/E =% of SpecificSoils Area
Peat Settlement Prone Areas 1,928 no impact n/a
Liquefaction Prone Areas 8,029 96 acres 1.2%
Geologic Hazard Areas1 6,888 13 acres 0.2%
1. Geologic Hazard Areas include known slide areas, potential slide areas, and steep slope erosion areas
2FTABOVE MHHW
24MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
3FTGIS data: PeatSettlementProneAreas_SeattleLimits, Liquefaction Prone Areas.shp, Potential Slide Areas.shp, Steep Slope Erosion Areas_SeattleLimits.ship, KnownSlideAreas_SeattleLimits.shp
CRITICAL AREAS IMPACTS: Soils
*Areas cannot be totaled due to overlapping areas. For example, a steep slope area may overlap a liquefaction prone area; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: 100 YEAR 2035: ANNUALLY2060: MONTHLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
3FT ABOVE MHHW (12' NAVD88) 259 acres 0.5%
TOTAL - CRITICAL AREAS: SOILS n/a*
SPECIFIC SOILS CRITICAL AREASESpecific Soils Area
FSpecific Soils Area Impacted
F/E =% of SpecificSoils Area
Peat Settlement Prone Areas 1,928 no impact n/a
Liquefaction Prone Areas 8,029 230 acres 2.9%
Geologic Hazard Areas1 6,888 16 acres 0.2%
1. Geologic Hazard Areas include known slide areas, potential slide areas, and steep slope erosion areas
3FTABOVE MHHW
25MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
GIS data: PeatSettlementProneAreas_SeattleLimits, Liquefaction Prone Areas.shp, Potential Slide Areas.shp, Steep Slope Erosion Areas_SeattleLimits.ship, KnownSlideAreas_SeattleLimits.shp
CRITICAL AREAS IMPACTS: Soils
*Areas cannot be totaled due to overlapping areas. For example, a steep slope area may overlap a liquefaction prone area; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: 100 YEAR 2060: ANNUALLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
4FT ABOVE MHHW (13' NAVD88) 478 acres 1.0%
TOTAL - CRITICAL AREAS: SOILS n/a*
SPECIFIC SOILS CRITICAL AREASESpecific Soils Area
FSpecific Soils Area Impacted
F/E =% of SpecificSoils Area
Peat Settlement Prone Areas 1,928 no impact n/a
Liquefaction Prone Areas 8,029 442 acres 5.5%
Geologic Hazard Areas1 6,888 20 acres 0.3%
1. Geologic Hazard Areas include known slide areas, potential slide areas, and steep slope erosion areas
4FTABOVE MHHW
26MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
5FTGIS data: PeatSettlementProneAreas_SeattleLimits, Liquefaction Prone Areas.shp, Potential Slide Areas.shp, Steep Slope Erosion Areas_SeattleLimits.ship, KnownSlideAreas_SeattleLimits.shp
CRITICAL AREAS IMPACTS: Soils
*Areas cannot be totaled due to overlapping areas. For example, a steep slope area may overlap a liquefaction prone area; areas are not counted twice -- see impacted acreage by specific area as appropriate.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: N/A2060: 100 YEAR
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
5FT ABOVE MHHW (14' NAVD88) 771 acres 1.5%
TOTAL - CRITICAL AREAS: SOILS n/a*
SPECIFIC SOILS CRITICAL AREASESpecific Soils Area
FSpecific Soils Area Impacted
F/E =% of SpecificSoils Area
Peat Settlement Prone Areas 1,928 no impact n/a
Liquefaction Prone Areas 8,029 725 acres 9%
Geologic Hazard Areas1 6,888 24 acres 0.4%
1. Geologic Hazard Areas include known slide areas, potential slide areas, and steep slope erosion areas
5FTABOVE MHHW
27MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
LAND USE IMPACTS BASELINEEXISTING LAND USE
ATotal Area (acres)
SEATTLE LAND AREA 53,238
C C/A
TOTAL - LAND USE: EXISTING LAND USE 53,246* 73%
SPECIFIC LAND USEESpecific Land Use Area
E/C% of Total Land Use Area
Single Family 25,705 66.2%
Midrise 747 2%
Lowrise 3,919 10.1%
Neighborhood Commercial 1,633 4.2%
Commercial 1,446 3.7%
Downtown 501 1.3%
Industrial Areas 4,745 12.2%
Master Planned Community + Highrise 108 0.3%
C
TOTAL - LAND USE: HOUSING UNITS 308,026 units
SPECIFIC HOUSING UNITSESpecific Housing Units
E/C% Total Units
Single Family Units 133,971 units 43.5%
Multi-Family Units 1,118 units 56.5%
LAND USE: BASELINE
LAND USE IMPACTS BASELINEZONED USE & PLANNING AREAS A
Total Area (acres)
SEATTLE LAND AREA 53,238
C C/A
TOTAL - LAND USE: ZONED USE 53,246* N/A*
SPECIFIC ZONED USEESpecific Zone Area
E/C% of Total Zone Area
Single Family 34,491 acres 65%
Multi-Family 5,827 acres 11%
Neighborhood/Res. Commercial 4,671 acres 11%
Downtown 913 acres 1.7%
Industrial Areas 6,183 acres 12%
Master Planned Community 43 acres 0.1%
Major Institutions 1,118 acres 2%
C C/A
TOTAL - LAND USE: PLANNING AREA 15,307 29%
SPECIFIC PLANNING AREA (PA)ESpecific PA Area
E/C% of Total PA Area
Ballard-Interbay-Northend 934 acres 6.1%
Belltown 220 acres 1.4%
Commercial Core 277 acres 1.8%
Greater Duwamish 4,953 acres 32.4%
Pioneer Square 141 acres 0.9%
South Park 263 acres 1.7%
Other Planning Areas 8,519 acres 55.7%
28MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
CLASS_DESCSingle Family
Residential/Commercial
Neighborhood/Commercial
Multi-Family
Master Planned Community
Manufacturing/Industrial
Major Institutions
Downtown
The pie chart shows the specific proportion of zoned use impacted at water levels 2FT above MHHW.
63%
25%
5%5%2%
LAND USE IMPACTS: Zoned UseGIS data: Zoning_Land
IMPACTS BY ZONED USE
*The Total Zoned Area does not equal the Total Seattle Land Area due to discrepancies in the GIS data. The dierence is less than 37 acres (0.07%).
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: ANNUALLY2035: MONTHLY2060: DAILY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
2FT ABOVE MHHW (11' NAVD88) 120 acres 0.2%
C D D/C =% of Total ZoneArea
TOTAL - LAND USE: ZONED USE 53,246* 118 acres 0.22%
SPECIFIC ZONED USEESpecific Zone Area
FSpecific Zone Area Impacted
F/E =% of SpecificZone Area
Single Family 34,491 29 acres 0.1%
Multi-Family 5,827 6 acres 0.1%
Neighborhood/Res. Commercial 4,671 6 acres 0.1%
Downtown 913 3 acres 0.3%
Industrial Areas 6,183 74 acres 1.2%
Master Planned Community 43 no impact n/a
Major Institutions 1,118 no impact n/a
2FTABOVE MHHW
29MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
CLASS_DESCSingle Family
Residential/Commercial
Neighborhood/Commercial
Multi-Family
Master Planned Community
Manufacturing/Industrial
Major Institutions
Downtown
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: 100 YEAR 2035: ANNUALLY2060: MONTHLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
3FT ABOVE MHHW (12' NAVD88) 259 acres 0.5%
C D D/C =% of Total ZoneArea
TOTAL - LAND USE: ZONED USE 53,246* 257 acres 0.48%
SPECIFIC ZONED USEESpecific Zone Area
FSpecific Zone Area Impacted
F/E =% of SpecificZone Area
Single Family 34,491 43 acres 0.1%
Multi-Family 5,827 9 acres 0.2%
Neighborhood/Res. Commercial 4,671 8 acres 0.1%
Downtown 913 4 acres 0.4%
Industrial Areas 6,183 193 acres 3%
Master Planned Community 43 no impact n/a
Major Institutions 1,118 no impact n/a
3FTLAND USE IMPACTS: Zoned UseGIS data: Zoning_Land
75%
17%
4%3%1%
IMPACTS BY ZONED USEThe pie chart shows the specific proportion of zoned use impacted at water levels 3FT above MHHW.
3FTABOVE MHHW
*The Total Zoned Area does not equal the Total Seattle Land Area due to discrepancies in the GIS data. The dierence is less than 37 acres (0.07%).
30MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
CLASS_DESCSingle Family
Residential/Commercial
Neighborhood/Commercial
Multi-Family
Master Planned Community
Manufacturing/Industrial
Major Institutions
Downtown
4FTLAND USE IMPACTS: Zoned UseGIS data: Zoning_Land
80%
13%
3%3%1%
IMPACTS BY ZONED USE
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: 100 YEAR 2060: ANNUALLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
4FT ABOVE MHHW (13' NAVD88) 478 acres 1.0%
C D D/C =% of Total ZoneArea
TOTAL - LAND USE: ZONED USE 53,246* 476 acres 0.89%
SPECIFIC ZONED USEESpecific Zone Area
FSpecific Zone Area Impacted
F/E =% of SpecificZone Area
Single Family 34,491 60 acres 0.2%
Multi-Family 5,827 13 acres 0.2%
Neighborhood/Res. Commercial 4,671 12 acres 0.2%
Downtown 913 5 acres 0.5%
Industrial Areas 6,183 385 acres 6.2%
Master Planned Community 43 no impact n/a
Major Institutions 1,118 no impact n/a
*The Total Zoned Area does not equal the Total Seattle Land Area due to discrepancies in the GIS data. The dierence is less than 37 acres (0.07%).
The pie chart shows the specific proportion of zoned use impacted at water levels 4FT above MHHW.
4FTABOVE MHHW
31MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
CLASS_DESCSingle Family
Residential/Commercial
Neighborhood/Commercial
Multi-Family
Master Planned Community
Manufacturing/Industrial
Major Institutions
Downtown
84%
10%
2%3%1%
5FTLAND USE IMPACTS: Zoned UseGIS data: Zoning_Land
IMPACTS BY ZONED USE
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: N/A2060: 100 YEAR
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
5FT ABOVE MHHW (14' NAVD88) 771 acres 1.5%
C D D/C =% of Total ZoneArea
TOTAL - LAND USE: ZONED USE 53,246* 769 acres 1.5%
SPECIFIC ZONED USEESpecific Zone Area
FSpecific Zone Area Impacted
F/E =% of SpecificZone Area
Single Family 34,491 79 acres 0.2%
Multi-Family 5,827 17 acres 0.3%
Neighborhood/Res. Commercial 4,671 19 acres 0.3%
Downtown 913 8 acres 0.9%
Industrial Areas 6,183 646 acres 10%
Master Planned Community 43 no impact n/a
Major Institutions 1,118 no impact n/a
*The Total Zoned Area does not equal the Total Seattle Land Area due to discrepancies in the GIS data. The dierence is less than 37 acres (0.07%).
The pie chart shows the specific proportion of zoned use impacted at water levels 5FT above MHHW.
5FTABOVE MHHW
32MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
BALLARD-INTERBAYNORTHEND
BELLTOWN
COMMERCIAL CORE
GREATER DUWAMISH
PIONEER SQUARE
Ballard
Othello
Uptown
Northgate
Capitol Hill
Greater Duwamish
North Rainier
First Hill
Belltown
Ballard-Interbay-Northend
Fremont
South Park
23rd & Union-Jackson
Eastlake
Wallingford
Columbia City
Rainier Beach
Bitter Lake Village
South Lake Union
University Campus
Crown Hill
Roosevelt
Commercial Core
Lake City
Aurora-Licton Springs
Pike/Pine
Ravenna
Admiral
12th Ave
Westwood-Highland Park
West Seattle Junction
University District Northwest
Madison-MillerDennyTriangle
Green Lake
Pioneer Square
North Beacon Hill
Morgan Junction
Chinatown-International District
Greenwood-Phinney Ridge
Upper Queen Anne
IMPACTS BY PLANNING AREA
2FTLAND USE IMPACTS: Planning AreasGIS data: UrbanVillages_Land
90%
6%
GREATER DUWAMISH
1%COMMERCIAL CORE
BALLARD- INTERBAY- NORTHEND
3% BELLTOWN
The pie chart shows the specific proportion of planning areas impacted at water levels 2FT above MHHW.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: ANNUALLY2035: MONTHLY2060: DAILY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
2FT ABOVE MHHW (11' NAVD88) 120 acres 0.2%
C D D/C =% of Total PA Area
TOTAL - LAND USE: PLANNING AREA 15,307 77 acres 0.5%
SPECIFIC PLANNING AREA (PA)ESpecific Planning Area
FSpecific PA Area Impacted
F/E =% of SpecificPA Area
Ballard-Interbay-Northend 934 acres 5 acres 0.5%
Belltown 220 acres 2 acres 0.9%
Commercial Core 277 acres 1 acres 0.4%
Greater Duwamish 4,953 acres 69 acres 1.4%
Pioneer Square 141 acres no impact n/a
South Park 263 acres no impact n/a
Other Planning Areas 8,519 acres no impact n/a
Planning Areas include urban centers, villages, manufacturing and industrial areas
2FTABOVE MHHW
33MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
BALLARD-INTERBAYNORTHEND
BELLTOWN
COMMERCIAL CORE
GREATER DUWAMISH
PIONEER SQUARE
Ballard
Othello
Uptown
Northgate
Capitol Hill
Greater Duwamish
North Rainier
First Hill
Belltown
Ballard-Interbay-Northend
Fremont
South Park
23rd & Union-Jackson
Eastlake
Wallingford
Columbia City
Rainier Beach
Bitter Lake Village
South Lake Union
University Campus
Crown Hill
Roosevelt
Commercial Core
Lake City
Aurora-Licton Springs
Pike/Pine
Ravenna
Admiral
12th Ave
Westwood-Highland Park
West Seattle Junction
University District Northwest
Madison-MillerDennyTriangle
Green Lake
Pioneer Square
North Beacon Hill
Morgan Junction
Chinatown-International District
Greenwood-Phinney Ridge
Upper Queen Anne
3FTLAND USE IMPACTS: Planning AreasGIS data: UrbanVillages_Land
IMPACTS BY PLANNING AREA 94%
1%4%
1%BALLARD-INTERBAY- NORTHEND
BELLTOWNCOMMERCIAL CORE
GREATER DUWAMISH
The pie chart shows the specific proportion of planning areas impacted at water levels 3FT above MHHW.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: 100 YEAR 2035: ANNUALLY2060: MONTHLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
3FT ABOVE MHHW (12' NAVD88) 259 acres 0.5%
C D D/C =% of Total PA Area
TOTAL - LAND USE: PLANNING AREA 15,307 197 acres 1.3%
SPECIFIC PLANNING AREA (PA)ESpecific Planning Area
FSpecific PA Area Impacted
F/E =% of SpecificPA Area
Ballard-Interbay-Northend 934 acres 8 acres 0.9%
Belltown 220 acres 2 acres 0.9%
Commercial Core 277 acres 2 acres 0.7%
Greater Duwamish 4,953 acres 185 acres 3.7%
Pioneer Square 141 acres no impact n/a
South Park 263 acres no impact n/a
Other Planning Areas 8,519 acres no impact n/a
Planning Areas include urban centers, villages, manufacturing and industrial areas
3FTABOVE MHHW
34MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
BALLARD-INTERBAYNORTHEND
BELLTOWN
COMMERCIAL CORE
GREATER DUWAMISH
PIONEER SQUARE
Ballard
Othello
Uptown
Northgate
Capitol Hill
Greater Duwamish
North Rainier
First Hill
Belltown
Ballard-Interbay-Northend
Fremont
South Park
23rd & Union-Jackson
Eastlake
Wallingford
Columbia City
Rainier Beach
Bitter Lake Village
South Lake Union
University Campus
Crown Hill
Roosevelt
Commercial Core
Lake City
Aurora-Licton Springs
Pike/Pine
Ravenna
Admiral
12th Ave
Westwood-Highland Park
West Seattle Junction
University District Northwest
Madison-MillerDennyTriangle
Green Lake
Pioneer Square
North Beacon Hill
Morgan Junction
Chinatown-International District
Greenwood-Phinney Ridge
Upper Queen Anne
4FTLAND USE IMPACTS: Planning AreasGIS data: UrbanVillages_Land
IMPACTS BY PLANNING AREA 95%
35MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
BALLARD-INTERBAYNORTHEND
BELLTOWN
COMMERCIAL CORE
GREATER DUWAMISH
PIONEER SQUARE
Ballard
Othello
Uptown
Northgate
Capitol Hill
Greater Duwamish
North Rainier
First Hill
Belltown
Ballard-Interbay-Northend
Fremont
South Park
23rd & Union-Jackson
Eastlake
Wallingford
Columbia City
Rainier Beach
Bitter Lake Village
South Lake Union
University Campus
Crown Hill
Roosevelt
Commercial Core
Lake City
Aurora-Licton Springs
Pike/Pine
Ravenna
Admiral
12th Ave
Westwood-Highland Park
West Seattle Junction
University District Northwest
Madison-MillerDennyTriangle
Green Lake
Pioneer Square
North Beacon Hill
Morgan Junction
Chinatown-International District
Greenwood-Phinney Ridge
Upper Queen Anne
5FTLAND USE IMPACTS: Planning AreasGIS data: UrbanVillages_Land
IMPACTS BY PLANNING AREAS 94%
0.1%0.5%SOUTH PARK
PIONEER SQ
BALLARD-INTERBAY- NORTHEND
GREATER DUWAMISH
4%0.7% BELLTOWNCOMMERCIAL
CORE0.7%
The pie chart shows the specific proportion of planning areas impacted at water levels 5FT above MHHW.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: N/A2060: 100 YEAR
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
5FT ABOVE MHHW (14' NAVD88) 771 acres 1.5%
C D D/C =% of Total PA Area
TOTAL - LAND USE: PLANNING AREA 15,307 656 acres 4.3%
SPECIFIC PLANNING AREA (PA)ESpecific Planning Area
FSpecific PA Area Impacted
F/E =% of SpecificPA Area
Ballard-Interbay-Northend 934 acres 27 acres 2.9%
Belltown 220 acres 4.4 acres 2.0%
Commercial Core 277 acres 4.2 acres 1.5%
Greater Duwamish 4,953 acres 617 acres 12.5%
Pioneer Square 141 acres 0.4 acres 0.3%
South Park 263 acres 3 acres 1.0%
Other Planning Areas 8,519 acres no impact n/a
Planning Areas include urban centers, villages, manufacturing and industrial areas
5FTABOVE MHHW
36MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
LegendCity_of_Seattle
SeattleLimits
DevCap_LandCLASS
Single Family
Neighborhood Commercial
Commercial
Lowrise
Midrise
Highrise
Master Planned Community
Industrial
Downtown
LAND USE IMPACTS: Existing Land UseGIS data: DevCap_Land
57% 27%
6%
3%4%
3%
IndustrialSingle Family
The pie chart shows the specific proportion of existing land use impacted at water levels 2FT above MHHW.
IMPACTS BY LAND USE
*The Total Existing Land Use Areas exclude right-of-way area; they are parcel areas only. That is why the Total Impacted Land Use Area (D) does not match the Total Seattle Land Area (B).
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: ANNUALLY2035: MONTHLY2060: DAILY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
2FT ABOVE MHHW (11' NAVD88) 120 acres 0.2%
C D D/C =% of Total LU Area
TOTAL - LAND USE: EXISTING LAND USE* 38,804 102 acres 0.3%
SPECIFIC EXISTING LAND USE (LU)ESpecific Land Use Area
FSpecific LU Area Impacted
F/E =% of SpecificLand Use Area
Single Family 25,705 28 acres 0.1%
Midrise 747 no impact n/a
Lowrise 3,919 3 acres 0.1%
Neighborhood Commercial 1,633 4 acres 0.2%
Commercial 1,446 6 acres 0.4%
Downtown 501 3 acres 0.6%
Industrial Areas 4,745 58 acres 1.2%
Master Planned Community + Highrise 108 no impact n/a
2FTABOVE MHHW
37MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
LegendCity_of_Seattle
SeattleLimits
DevCap_LandCLASS
Single Family
Neighborhood Commercial
Commercial
Lowrise
Midrise
Highrise
Master Planned Community
Industrial
Downtown
3FTLAND USE IMPACTS: Existing Land UseGIS data: DevCap_Land
70%
20%
3%3%2% 2%
Industrial
Single Family
IMPACTS BY LAND USEThe pie chart shows the specific proportion of existing land use impacted at water levels 3FT above MHHW.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: 100 YEAR 2035: ANNUALLY2060: MONTHLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
3FT ABOVE MHHW (12' NAVD88) 259 acres 0.5%
C D D/C =% of Total LU Area
TOTAL - LAND USE: EXISTING LAND USE* 38,804 211 acres 0.54%
SPECIFIC EXISTING LAND USE (LU)ESpecific Land Use Area
FSpecific LU Area Impacted
F/E =% of SpecificLand Use Area
Single Family 25,705 41 acres 0.2%
Midrise 747 no impact n/a
Lowrise 3,919 4 acres 0.1%
Neighborhood Commercial 1,633 7 acres 0.4%
Commercial 1,446 7 acres 0.5%
Downtown 501 4 acres 0.8%
Industrial Areas 4,745 148 acres 3.1%
Master Planned Community + Highrise 108 no impact n/a
3FTABOVE MHHW
*The Total Existing Land Use Areas exclude right-of-way area; they are parcel areas only. That is why the Total Impacted Land Use Area (D) does not match the Total Seattle Land Area (B).
38MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
LegendCity_of_Seattle
SeattleLimits
DevCap_LandCLASS
Single Family
Neighborhood Commercial
Commercial
Lowrise
Midrise
Highrise
Master Planned Community
Industrial
Downtown
4FTLAND USE IMPACTS: Existing Land UseGIS data: DevCap_Land
77%
15%
2%3%1% 2%
Industrial
Single Family
IMPACTS BY LAND USEThe pie chart shows the specific proportion of existing land use impacted at water levels 4FT above MHHW.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: 100 YEAR 2060: ANNUALLY
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
4FT ABOVE MHHW (13' NAVD88) 478 acres 1.0%
C D D/C =% of Total LU Area
TOTAL - LAND USE: EXISTING LAND USE* 38,804 385 acres 1.0%
SPECIFIC EXISTING LAND USE (LU)ESpecific Land Use Area
FSpecific LU Area Impacted
F/E =% of SpecificLand Use Area
Single Family 25,705 58 acres 0.2%
Midrise 747 no impact n/a
Lowrise 3,919 6 acres 0.2%
Neighborhood Commercial 1,633 11 acres 0.7%
Commercial 1,446 8 acres 0.6%
Downtown 501 5 acres 1.0%
Industrial Areas 4,745 297 acres 6.3%
Master Planned Community + Highrise 108 no impact n/a
4FTABOVE MHHW
*The Total Existing Land Use Areas exclude right-of-way area; they are parcel areas only. That is why the Total Impacted Land Use Area (D) does not match the Total Seattle Land Area (B).
39MAPPING INVENTORY Climate Preparedness Mapping InventoryPrepared for OSE by GGLO (2013070.00) | August 24, 2015
[
SEA LEVEL RISE IMPACTSSLR_11
SLR_12
SLR_13
SLR_14
1:100,000
0 2 4 6 81Miles
LegendCity_of_Seattle
SeattleLimits
DevCap_LandCLASS
Single Family
Neighborhood Commercial
Commercial
Lowrise
Midrise
Highrise
Master Planned Community
Industrial
Downtown
5FTLAND USE IMPACTS: Existing Land UseGIS data: DevCap_Land
81%
12%
1.4%2.2%
1.3% 2.1%
Industrial
Single Family
IMPACTS BY LAND USEThe pie chart shows the specific proportion of existing land use impacted at water levels 5FT above MHHW.
Year of Occurrence: FREQUENCY BASELINE IMPACTEDNow: N/A2035: N/A2060: 100 YEAR
ATotal Area (acres)
BTotal Area Impacted
B/A =% of Total Baseline Seattle Land AreaSEATTLE LAND AREA 53,238
5FT ABOVE MHHW (14' NAVD88) 771 acres 1.5%
C D D/C =% of Total LU Area
TOTAL - LAND USE: EXISTING LAND USE* 38,804 635 acres 1.6%
SPECIFIC EXISTING LAND USE (LU)ESpecific Land Use Area
FSpecific LU Area Impacted
F/E =% of SpecificLand Use Area
Single Family 25,705 76 acres 0.3%
Midrise 747 no impact n/a
Lowrise 3,919 9 acres 0.2%
Neighborhood Commercial 1,633 13 acres 0.8%
Commercial 1,446 14 acres 1.0%
Downtown 501 8 acres 1.6%
Industrial Areas 4,745 515 acres 11%
Master Planned Community + Highrise 108 no impact n/a
5FTABOVE MHHW
*The Total Existing Land Use Areas exclude right-of-way area; they are parcel areas only. That is why the Total Impacted Land Use Area (D) does not match the Total Seattle Land Area (B).
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